William Pei Yuan – Medium

William Pei Yuan

William Pei Yuan

Binary Tree Vertical Order Traversal

Given the root of a binary tree, return the vertical order traversal of its nodes' values. (i.e., from top to bottom, column by column).

Aug 13, 2023

Binary Tree Vertical Order Traversal

Aug 13, 2023

William Pei Yuan

Create a Binary Search Tree

This code takes an array that represents a binary tree in level-order traversal (root node at the beginning (index 0), then level by level…

Aug 5, 2023

Create a Binary Search Tree

Aug 5, 2023

William Pei Yuan

Validate Binary Search Tree

Given the root of a binary tree, we are to determine if it is a valid binary search tree (BST). A valid BST follows these properties:

Aug 5, 2023

Validate Binary Search Tree

Aug 5, 2023

William Pei Yuan

Container With Most Water

Given an array where each element represents the height of a vertical line on a chart. The goal is to find two lines, which together with…

Aug 4, 2023

Container With Most Water

Aug 4, 2023

William Pei Yuan

Best Time to Buy and Sell Stock

Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one…

Aug 4, 2023

Best Time to Buy and Sell Stock

Aug 4, 2023

William Pei Yuan

3 Sum Zero

solution for https://leetcode.com/problems/3sum/

Aug 4, 2023

3 Sum Zero

Aug 4, 2023

William Pei Yuan
in
Powermoves never die, it evolves

An iterative guide to training powermoves for longevity: Part 1 — Airflares intro

Training, maintaining, conditioning and/or rehabilitating your airflares for longevity. Part 1 is the setup of the g-force airflare…

Feb 3, 2020

An iterative guide to training powermoves for longevity: Part 1 — Airflares intro

Feb 3, 2020

William Pei Yuan
in
Powermoves never die, it evolves

An iterative guide to training powermoves for longevity: Part 1 — Flares intro

Training, maintaining, conditioning and/or rehabilitating your flares for longevity. Part 1 is the setup of the g-force flare machine and…

Jan 27, 2020

An iterative guide to training powermoves for longevity: Part 1 — Flares intro

Jan 27, 2020

William Pei Yuan
in
Powermoves never die, it evolves

An iterative guide to training powermoves for longevity — Intro & faqs.

Introduction & FAQs with the gravity force training machines. (*The guides are combinations of paraphrased g-force manual information…

Jan 27, 2020

collage of bboys

Jan 27, 2020

William Pei Yuan

The JavaScript map() w/in ReactJS — a simple example.

I have written a code sandbox (https://codesandbox.io/) example of using the all-powerful JavaScript map function with ReactJS (CRA —…

Aug 13, 2019

The JavaScript map() w/in ReactJS — a simple example.

Aug 13, 2019

William Pei Yuan

William Pei Yuan

Software Engineer & Bboy. Passionate @ solving digital and human problems. https://supwill.dev / linkedin.com/in/williampeiyuan/

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